Excerpt: My dad porticoed this lens for me after being on my wish list.. Simply love using it, but for me its really heavy. My husband can use it better than me but I am thinking of buying a Pole to assist me.. Not sure if that is the way to go.. The new Nikon 200-500mm is 4.60 lb (2090 g) so even heavier..
Pros: Consistent Output, Durable, Fast / accurate auto-focus, Strong Construction
Excerpt: I have used this lens for everything from nature to modeling shoots. It's very sharp and in AF-C mode is great for action shots. One drawback is the weight, the thing is built as solid as a brick. I like to shoot hand held and this makes for a long day holding this lens.
Pros: Consistent Output, Durable, Fast / accurate auto-focus, Nice Bokeh, Rugged, Strong Construction
Excerpt: This lens is great for wildlife photography. The ability to get up and close to your subject at the wide range of this lens is great, and being able to really reach out there on the telephoto end is great. It's a lens that you can keep on your camera and cover just about any situation.
Pros: Durable, Fast / accurate auto-focus, Rugged, Strong Construction
Excerpt: I have looked for a long time, to find a lens that will work for most of the pictures that I do with out changing all the time. I have had this lens for couple of weeks. It is so awesome, I shoot baseball and a lot of different activities. I believe. This is one of the most usable lens I have.
Excerpt: So far I used it to shoot parade, wedding, surprise engagement, and football game. Image quality is about 95% of Canon's 100-400 L series lens. Unless you're shooting for National Geographic, it won't be obvious for your clients, but extra zoom on both ends will be.
Pros: Fast / accurate auto-focus, Huge zoom range, Rugged, Strong Construction
Excerpt: This is my third Sigma zoom lens. And this 50-500mm is a keeper! The prior lenses were 135-400mm and 120-400mm. The 50-500mm blows the others out of the water. The focus is much faster and a lot less searching. And the focus is correct with no in camera compensation (Pentax K-3).
Pros: Fast / accurate auto-focus, Nice Bokeh, Rugged, Strong Construction